A number is chosen at random from the set 1,2,3 …150 and another number is chosen at random from the set 1,2,3….75 find the expected value of the product of the chosen number

A number is chosen at random from the set 1,2,3 …100 and another number is chosen at random from the set 1,2,3,…50 what is the expected value of the product ?

A number is chosen at random from the first 11 natural numbers, then the probability that the chosen number is even, is -

Find the number of all onto functins from the set {1,2,3..,n} to itself.

A number is chosen at from the first 11 natural number, then the probability that the chosen number is even is

Three numbers are chosen at random from the first 20 natural numbers. The probability that their product is even is -

A letter is taken at random from the letters of the word STATISTICS and another letter is taken at random from the letters of the word ASSISTANT. What is the probability that the chosen two are the same letter.

A number is chosen at random from the numbers 1, 2,…, 15. find the probability that the chosen number is (i) even (ii) odd and (iii) multiple of 3.

A number is chosen at random from the first 50 positive integers. Find the probability that the chosen number is divisible by 4 or 5.

If A={1,2,3} and B={6,7} find the number of subsets of the set AxxB .

Two digits are chosen at random from the digits 1, 2, 3, …, 9, if the sum of the chosen digits is odd, find the probability that one of the chosen digit is 6.